LDM40 CARLOGAVAZZI | Alldatasheet

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Technical content

Specifications are subject to change without notice LDM40DS 250707 1

  • Multi-input instrument 4-DGT LED
  • 0.1% RDG basic accuracy
  • TRMS AC current and voltage measurements
  • AC/DC current measurements: selectable full scales (200µA to 5A)
  • AC/DC voltage measurements: selectable full scales (200mV to 500V)
  • Up to 2 independent alarm set-points (optional)
  • 20mA/10V DC analogue output (optional)
  • RS485 serial communication port (optional)
  • Modbus, Jbus communication port
  • Universal power supply: 18-60VAC/DC and 90-260VAC/DC
  • Front protection degree: IP65 Product Description µP-based digital panel meter, 4-DGT LED indicator and controller, for current, voltage measurements. Measuring ranges and functions easily programmable from the front key-pad. LDM 40 includes storage min-max functions and two-level protection password. One analogue output and serial communi- cation port RS485 available on request. Housing for panel mounting with front protection degree: IP65. Type LDM40 Type Selection Measuring inputs LSE: signal inputs + AUX: 0.2-2-20mA DC/AC; 0.2-2-20V DC/AC HSX: signal inputs: 0.2-2-5A DC/AC; 20-200-500V DC/AC Retransmission XX: None AV: Single analogue output, 0 to 20mA DC and 0 to 10V DC Power supply H: 90 to 260V AC/DC L: 18 to 60V AC/DC Options X: None T: Tropicalization Model Measuring inputs Power supply Alarms Retransmission Communication Options How to order LDM40 LSE H 0 XX XX X Analogue inputs Channels and variables LSE type 1, mA and V DC/AC + AUX HSX type 1, A and V DC/AC Accuracy See table “Measurement accuracy, temperature drifts, minimum and maximum indications” Additional errors Humidity 0.3% RDG, 60%to 90% R.H. Input frequency 0.4% RDG, 62 to 440 Hz Magnetic field 0.5% RDG @ 400 A/m Temperature drift See table “Measurement accuracy, temperature drifts, min and max indications” Sampling rate 500 samples/s @ 50Hz Display refresh time 200 msec @ 50Hz Display 4 DGT, 7 segments height 14.2 mm Colour: red Max and min indication See table “Measurement accuracy, temperature drifts min and max indications” Measurements Current, voltage. For the current and voltage measurements: TRMS measurement of dis- torted sine waves. Coupling type Direct Crest factor ≤3; APmax=1.7In; VPmax=1.7Un Input impedance See table “input impedances and overloads” Frequency 40 to 440 Hz Overload See table “input impedances and overloads” Input Specifications DC/AC Current and Voltage Indicator/Controller Digital Panel Meters Alarms 0: None 1: single relay output, (AC1-5AAC, 250VAC) 2: Dual relay output, (AC1-5AAC, 250VAC) Communication XX: None SX: Serial port RS485

2 Specifications are subject to change without notice LDM40DS 250707

-200µA to +200µA -2mA to +2mA -20mA to +20mA -200mV to +200mV -2V to +2V -20V to +20V DC/AC DC: ±(0.1%RDG+3DGT) 0% to 25% FS; ±(0.1%RDG+2DGT) 25% to 110% FS. TRMS (45 to 65Hz)*: ±(0.3%RDG+3DGT) 0% to 25% FS; ±(0.3%RDG+2DGT) 25% to 110% FS. ±150 ppm/°C - 199.9 - 1.999 - 19.99 - 199.9 - 1.999 - 19.99 + 200.0 + 2.000 + 20.00 + 200.0 + 2.000 + 20.00 HSX -200mA to +200mA -2A to +2A -5A to +5A -20V to +20V -200V to +200V -500V to +500V DC/AC DC: ±(0.1%RDG+3DGT) 0% to 25% FS; ±(0.1%RDG+2DGT) 25% to 110% FS. TRMS (45 to 65Hz) ±(0.3%RDG+3DGT) 0% to 25% FS; ±(0.3%RDG+2DGT) 25% to 110% FS. ±150 ppm/°C - 199.9 - 1.999 - 1.999 - 19.99 - 199.9 - 199.9 + 200.0 + 2.000 + 5.000 + 20.00 + 200.0 + 500.0 Measurement accuracy, temperature drifts, min and max indications All accuracies and min/max indications are referred to an ambient temperature range of 25°C ±5°C, relevant humidity ≤60% and scale ratio (electrical/displayed scale) equal to 1. Input Range Type Impedance Overload (continuous) Overload (1s) LSE -200µA to +200µA -2mA to +2mA -20mA to +20mA -200mV to +200mV -2V to +2V -20V to +20V DC/AC DC/AC DC/AC DC/AC DC/AC DC/AC ≤2.2kΩ ≤22Ω ≤22Ω ≥2.2kΩ ≥200kΩ ≥200kΩ 5mA 50mA 50mA 10V 50V 50V 10mA 150mA 150mA 20V 100V 100V HSX -200mA to +200mA -2A to +2A -5A to +5A -20V to +20V -200V to +200V -500V to +500V DC/AC DC/AC DC/AC DC/AC DC/AC DC/AC ≤1Ω ≤0.012Ω ≤0.012Ω ≥2MΩ ≥2MΩ ≥2MΩ 0.8A 7.5A 7.5A 750V 750V 750V 100A 100A 1000V 1000V 1000V Input impedances and overloads * <45Hz >65Hz= ±(0.5%RDG+3DGT) 0% to 25% FS;±(0.5%RDG+2DGT) 25% to 110% FS. (/UIstop) The min. indication for TRMS measurement (AC or DC) is 0; it is possible to modify the decimal point position. The max indication using the scaling capability of the instrument can be extended to 9999. Alarm outputs (on request) Alarm type Active alarm for out-of-range, up alarm, down alarm, down alarm with start-up deactivation, up alarm with latch, down alarm with latch Alarm set-point Adjustable from 0 to 100% of displayed range Hysteresis 0 to 100% of displayed range On-time delay 0 to 255 s Off-time delay 0 to 255 s Output status Selectable: normally energized/de-energized Min response time 500 ms, with filter excluded, without alarm on-time delay Output channels Up to 2 Type SPDT AC 1: 5A, 250VAC DC 12: 5A, 24VDC AC 15: 2,5A, 250VAC DC 13: 2,5A, 24VDC Insulation 4000 V RMS output to measuring input, 4000 V RMS output to power supply input. Output specifications

Specifications are subject to change without notice LDM40DS 250707 3 LDM40 RS422/RS485 (on request) Serial output Bidirectional (static and dynamic variables). Connections Multidrop, 2 or 4 wires, Distance 1000 m Terminalization Directly on the module by means of jumper Addresses 1 to 255, selectable by means of the front key-pad Protocol MODBUS RTU/JBUS Data (bidirectional) Dynamic (reading only) Measurement, min value max value alarm status Static (reading/writing) All programming parameters, min max reset reset of latch alarm Data format 8 data bit, no parity, 1 stop bit Baud rate Selectable 4800, 9600, and 19200 bit/s Insulation By means of opto-couplers

4000 Vrms output to

measuring inputs, 4000 V rms output to power supply input Analogue output (on request) Range 0 to 20 mADC, 0 to 10 VDC Scaling factor Programmable within the entire retransmission range; allows to manage the retransmission of all the values from: 0 to 20 mA / 0 to 10V Accuracy ± 0.2% FS (@ 25°C ± 5°C) Response time ≤ 10 ms Temperature drift ± 200 ppm/°C Load: 20 mA output ≤ 700 Ω

10 V output ≥ 10 kΩ

Insulation By means of opto-couplers 4000Vrms output to measuring input, 4000V rms output to power supply input Notes: The two outputs cannot be used at the same time Excitation output LSE input only Voltage 13 VDC ±10% max. 50 mA Insulation 25Vrms output to measuring input, 4000 V rms output to power supply input Output specifications Electrical range Programmable within the whole measuring range Decimal point position Programmable within the displayed range Displayed range Programmable within the displayed range. Diagnostics The display flashes when the limits of the displayed range are exceeded, the data are updated up to 20% of the rated displayed range. Digital filter Filter operating range 0 to 9999 Filtering coefficient 1 to 32 Scaling Selection of min value of the input range. Selection of max value of the input range. Selection of decimal point position. Selection of min displayable value. Selection of max displayable value. Min / Max storage Automatic storage (in the EEPROM) of the minimum and maximum measured value from the previous memory reset Password Numeric code max 4 dgt 2 levels of data protection. 1st level 0 to 4999 fully protected. 2nd level 5000 to 9999 access to programming is protected . Alarm set-points are directly programmable from the measuring mode. Measurement selection Depending on the input: - measuring range - measuring type (TRMS or DC). Integration time selection Automatic or from 100.0 to 999.9 ms only in the current and voltage measurement. Scaling factor Operating mode Electrical scale compression, displayed scale compression/expansion (max. 2 without filter, up to 10 with filter) Software functions

4 Specifications are subject to change without notice LDM40DS 250707

Safety EN 61010-1, IEC 61010-1 Connections Screw type Wire section Max 2.5mm 2 Housing Dimensions 1/8 DIN, 48 x 96 x 83 mm Material PC-ABS, self-extinguishing: UL 94 V-0 Protection degree Front: IP65 Connections: IP20 Weight 340 g approx (packing included) Approvals CE, UL and CSA in progress Operating 0° to 50°C (32° to 122°F) temperature (R. H. < 90% non-condensing) Storage -10° to 60°C (14° to 140°F) temperature (R.H. < 90% non-condensing) Insulation reference 300 VRMS to ground voltage (500V input) Insulation See table “Insulation between inputs and outputs” Dielectric strength 4000 VRMS for 1 minute Rejection NMRR 40 dB, 40 to 60 Hz CMRR 100 dB, 40 to 60 Hz EMC EN61000-6-2, IEC61000-6-2 EN61000-6-3, IEC61000-6-3 General Specifications Insulation between inputs and outputs AC/DC voltage 90 to 260V (standard) 18 to 60V (on request) Energy consumption ≤ 8VA/4W (90 to 260V) ≤ 8VA/4W (18 to 60V) Supply Specifications V mA 10 20 30 40 50 60 Excitation output Continuous The excitation output is constant and indepen- dent of power supply’s voltage. Only for TRMS Measurements Instantaneous effective voltage (TRMS) Used calculation formulas Instantaneous effective current (TRMS) max. 30s Meas. input Relay output Analogue output Serial port Excit. output 90-260VAC/ DC p.supply 18-60VAC/ DC p.supply Meas. input - 4kV 4kV 4kV 25V 4kV 4kV Relay output 4kV - 4kV 4kV 4kV 4kV 4kV Analogue output 4kV 4kV - 4kV 4kV 4kV 4kV Serial port 4kV 4kV 4kV - 4kV 4kV 4kV Excit. output 25V 4kV 4kV 4kV - 4kV 4kV 90-260VAC/ DC p.supply 4kV 4kV 4kV 4kV 4kV - - 18-60VAC/ DC p.supply 4kV 4kV 4kV 4kV 4kV - -

Specifications are subject to change without notice LDM40DS 250707 5 LDM40 Wiring diagrams Process signal wiring diagrams 1 2 43 5 6 32 31 2930 28 20V 0.2mA 200mV COM 20mA 2mA AUX- AUX+ N.C. N.O. COM - ++ - Current measurements 4-wire connection probe Fig. 5 1 2 43 5 6 32 31 2930 28 20V 0.2mA 200mV COM 20mA 2mA AUX- AUX+ N.C. N.O. COM z + ~ - ~ 1 2 43 5 6 32 31 2930 28 20V 0.2mA 200mV COM 20mA 2mA AUX- AUX+ N.C. N.O. COM z + ~ - ~ Current measurements Voltage measurements Fig. 1 Fig. 2 LSE LSE LSE 1 2 43 5 6 32 31 2930 28 20V 0.2mA 200mV COM 20mA 2mA AUX- AUX+ N.C. N.O. COM - ++ - Voltage measurements 4-wire connection probe Fig. 3LSE 1 2 43 5 6 32 31 2930 28 20V 0.2mA 200mV COM 20mA 2mA AUX- AUX+ N.C. N.O. COM - ++ - Voltage measurements 3-wire connection probe Fig. 4LSE 1 2 43 5 6 32 31 2930 28 20V 0.2mA 200mV COM 20mA 2mA AUX- AUX+ N.C. N.O. COM - ++ - Current measurements 3-wire connection probe Fig. 6LSE Probe 1 2 43 5 6 32 31 2930 28 20V 0.2mA 200mV COM 20mA 2mA AUX- AUX+ N.C. N.O. COM - ++ - Current measurements 2-wire connection probe Fig. 7LSE z + ~ - ~ 1 2 3 5 6 500V 200V 20V COM 200mA 32 31 2930 28 N.C. N.O. COM Voltage measurements Fig. 9HSX 1 2 3 5 6 500V 200V 20V COM 200mA 32 31 2930 28 N.C. N.O. COM z + ~ - ~ Current measurements Fig. 8HSX High-level signals wiring diagrams Probe Signal output Probe power supply Probe Probe Signal output Probe power supply Probe Probe Signal output Probe power supply Probe Probe Signal output Probe power supply Probe Probe Signal output Probe power supply

  • to program values; - to select functions; - to scroll display pages. 2. Display Instantaneous measurements: - 4 digit (max display 9999). Alphanumeric indications by means of LED display for: - Display of configuration parameters; - The measured variable. 3. Alarm status LED Display any alarm condition 4. Engineering unit The instrument is supplied with a complete set of self-sticking labels with the main engineering units. Front panel description 1. Key-pad The programming of the configuration parameters and the display are easily controlled by means of the 3 function keys. : to enter the programming procedure and to confirm the password.

6 Specifications are subject to change without notice LDM40DS 250707

Power supply and output connections wiring diagrams 2 143 Relay output RS485 serial port (last instrument) Analogue outputs, 10V, 20mA DC Other Instruments RS1,2,3...N Serial Converter RS485 4-wire connection: additional devices provided with RS485 port (indicated as RS1,2,3...N) ar e connected in parallel. The termi - nation of the serial port is carried out only on the last instrument of the network with a jumper from 25 to 27 connections. Note: particular types of cables or plants may require an external termination. For the network connections use twisted cable type AWG26. H: power supply 90-260VAC/DC, F1= 315mA T 250V 5x20mm L: power supply 18-60VAC/DC, F1= 1.6A T 250V 5x20mm Relay output

Specifications are subject to change without notice LDM40DS 250707 7 LDM40 Dimensions Engineering Units Max. allowed panel depth: 8mm. 83mm 11mm 48mm 96mm 92mm -0,3/+0,8 45mm -0,3/+0,6 Terminal blocks Instrument back view